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Re: flat hatch

On Tue, 12 May 1998 18:05:25 PDT, "STEVE McColman"
<steve_mccolman@hotmail.com> wrote:

> Thanks for all the advice guys!  But, does anyone know if there is an 
> actual spec for how thick the hatch would need to be to withstand 60,000 
> psi?   Oh, and Gary what do you mean by a "tank head".?  The end of a 
> propane tank ,maybe!           Steve

The pressure wasn't 60,000 psi, it was 60,000 pounds total. There's a
fairly significant difference...

My point earlier was not that a flat plate would support the pressure, it
was the adjective used to describe the pressure at 400 feet... I've been
doing a lot of research lately on deep-diving small autonomous subs, and
I've had 20,000 feet in my head as a good depth for my third AUV (Deep
Seeker).

The pressure at 20,000 feet is definitely what I would call horrendous...

I guess it's all relative to what you have in your mind... :-)

Later,
Jon

--------------------------------------------------------------
   Jon Hylands      Jon@huv.com      http://www.huv.com/jon

  Project: Micro Seeker (Micro Autonomous Underwater Vehicle)
           http://www.huv.com